CN106278199B - A kind of built-in pure titanium or the Ceramic Balls of alpha titanium alloy skeleton and preparation method thereof - Google Patents
A kind of built-in pure titanium or the Ceramic Balls of alpha titanium alloy skeleton and preparation method thereof Download PDFInfo
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- CN106278199B CN106278199B CN201610650574.2A CN201610650574A CN106278199B CN 106278199 B CN106278199 B CN 106278199B CN 201610650574 A CN201610650574 A CN 201610650574A CN 106278199 B CN106278199 B CN 106278199B
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Abstract
The Ceramic Balls of pure titanium or alpha titanium alloy skeleton built in a kind of, the skeleton of the integral structure made of pure titanium or alpha titanium alloy and the spheres of ceramic wrapped up outside it form, and are manufactured by way of whole pressing, high temperature sintering；The total volume of pure titanium or alpha titanium alloy skeleton is the 3-5% of Ceramic Balls volume, and longest direction size is less than the 70% of spheres of ceramic outer diameter；Spheres of ceramic is made of alumina-based ceramic material.The invention also discloses preparation methods, including the processes such as ingredient, ball milling, mist projection granulating, feed bin are aging, Profile procoess, high temperature sintering, the polishing of clear powder, finished product drying, have especially carried out a large amount of improvement in Profile procoess, high temperature sintering process.The Ceramic Balls globality of built-in pure titanium or alpha titanium alloy skeleton of the invention is more preferable, non-breakable, and preparation method by the improvement to Profile procoess, high temperature sintering process make it possible built-in pure titanium or alpha titanium alloy skeleton Ceramic Balls industrialized production.
Description
Technical field
The present invention relates to the Ceramic Balls of titanium pure built in cement manufacture field more particularly to one kind or alpha titanium alloy skeleton and its
Preparation method.
Background technique
Cement ball mill is with adaptable to material, energy continuous production, reduction ratio is big, is easy to adjust the speed the thin of ground prod
The features such as spending.The working principle of common cement ball mill is, material by feeding device through pan feeding hollow shaft spiral equably into
Enter in grinding machine storehouse, there is ladder lining board or corrugated liner, the steel ball or Ceramic Balls of built-in different size in the storehouse, barrel body rotation generates
Centrifugal force is fallen after taking steel ball or Ceramic Balls to certain altitude, generates bang and abrasive action to material.Cement ball mill pottery
Porcelain ball is the common grinding material medium of cement ball-milling machine equipment, passes through touching between cement ball mill Ceramic Balls, material, liner plate
It hits friction and generates ablation, so that the partial size of material be further decreased.Therefore, Ceramic Balls hardness when in use and wear-resisting
Property be one of the principal element for influencing grinding shaping effect, simultaneously as ceaselessly hit for a long time, for the anti-of mill ball
Impact property has high requirement.
In the prior art, cement ball mill has had with Ceramic Balls and has relatively mostly used, most of to use traditional Al2O3-
CaO-MgO-SiO2 quaternary system also has a small amount of inventor to improve on its formula, special to achieve the effect that.Such as this hair
Bright people has applied for the more parts of Ceramic Balls using new formulation before this, has high rigidity, high temperature resistant, high life, easily molded, toughness
The high effect of good, production cement degree of purity.
But in the research of long-term cement ball mill Ceramic Balls, the inventors discovered that, starting, emergency stop, throwing pendant etc.
Impact caused by be crushed be one of most common damage mode of Ceramic Balls, this greatly restricts the hair of cement ball-milling industry
Exhibition.
Titanium is the important structural metal of one kind to grow up the 1950s, and titanium alloy is because with intensity, plasticity, tough
Property it is high, corrosion resistance is good, heat resistance, high formability the features such as and be widely used in every field, especially its specific strength superelevation
Advantage is preced with all metals and alloy absolutely.Many countries all recognize the importance of titanium alloy material in the world, carry out in succession to it
Research and development, and be applied.It is good, heat-resisting using the intensity height of the refractory metals such as pure titanium, alpha titanium alloy, corrosion resistance
Property it is high the advantages that, using the method for being implanted into pure titanium or alpha titanium alloy skeleton, the globality of Ceramic Balls can be made more preferable, and by
To impact when impact force can be shared by skeleton, it is non-breakable.
Pure titanium is implanted into Ceramic Balls or alpha titanium alloy skeleton is belonging to blank field before this, be there is no and is seen that any research is seen in
Paper or patent, the preparation method for being able to achieve its industrialized production are even more so.
Summary of the invention
In view of the above defects of the prior art, the present invention is intended to provide a kind of globality is more preferable, non-breakable
The Ceramic Balls of built-in pure titanium or alpha titanium alloy skeleton and the preparation method for being able to achieve its industrialized production.
To achieve the goals above, the invention adopts the following technical scheme: the pottery of pure titanium or alpha titanium alloy skeleton built in one kind
Porcelain ball, the skeleton of the integral structure made of pure titanium or alpha titanium alloy and the spheres of ceramic wrapped up outside it form, and pass through whole pressure
It closes, the mode of high temperature sintering manufactures；The total volume of pure titanium or alpha titanium alloy skeleton is the 3-5% of Ceramic Balls volume, longest direction ruler
Very little 70% less than spheres of ceramic outer diameter；Spheres of ceramic is made of alumina-based ceramic material.
The Ceramic Balls of above-mentioned built-in pure titanium or alpha titanium alloy skeleton, in which: the pure titanium or alpha titanium alloy skeleton are whole
The dendroid or herring-bone form structure of body die cast.
The Ceramic Balls of above-mentioned built-in pure titanium or alpha titanium alloy skeleton, in which: the formula of the spheres of ceramic are as follows: oxidation
Aluminium 92-95%, di-iron trioxide 0.5-2%, kaolin 0.8-3%, silicon carbide 0.2-2%, titanium dioxide 1.5-2%, titanium carbide 0.8-
1%, molybdenum disulfide 0.3-2%.
The preparation method of the Ceramic Balls of above-mentioned built-in pure titanium or alpha titanium alloy skeleton, including ingredient, ball milling, mist projection granulating,
The processes such as feed bin is aging, the polishing of Profile procoess, high temperature sintering, clear powder, finished product are dry, in which:
A. the Profile procoess process includes following sub- process:
1) first watering powder: lower semisphere mould is transported to station one by stepping conveying belt, and the powder of ceramic prilling is passed through
Conveying pipeline is poured into lower semisphere mould, and the moisture control of powder is below 0.5%；
2) skeleton dropping place: being transported to station two for lower semisphere mould, then passes through the pure titanium of placement or the device of alpha titanium alloy skeleton
The pure titanium or alpha titanium alloy skeleton of the molding dendroid of integral die-cast or herring-bone form are placed into the surface of the powder in lower semisphere mould
Center；
3) sphere presses full circle: lower semisphere mould is transported to station three；The top that powder lot in bags is put into episphere mould is entered
Mouthful, then molding press is entered in the mode parallel with the upper entrance in episphere mould, is revolved clockwise after circular groove reaching in upper
Turn 90 °, molding press is fixed in the vertical direction with episphere mould；Subsequent molding press drives episphere mould downlink, until episphere mould
It is contacted with lower semisphere mould, molding press is rotated by 90 ° counterclockwise, and molding press and episphere mould release fixation in the vertical direction；Pressing mold
Machine downlink crushes the sack of powder lot in bags, in powder lot in bags episphere die cavity is got by press-powder hole;Molding press
It continues traveling downwardly to circular groove in lower is reached, powder lot in bags is squeezed into one with pure titanium or alpha titanium alloy skeleton, powder, is formed complete
Ceramic Balls base；Molding press continues to rotate after rotating clockwise 90 °, is limited by the closed section of lower interior circular groove, and molding press drives
The rotation of episphere die cavity, rotation carry out at least 3 circles, and episphere die cavity machines away the extra blank on Ceramic Balls base surface；Then
Molding press lifts, and episphere die cavity is driven to leave Ceramic Balls base.
4) ball base shifts: lower semisphere mould being transported to station four, Ceramic Balls base is transferred to high temperature casket by transfer device
Alms bowl sprinkles parting sand.
B. the high temperature sintering process specifically: by the high temperature sagger of the Ceramic Balls base obtained equipped with Profile procoess process
It is sent into the good tunnel oven of air-tightness；Logical inert gas, high temperature sintering temperature 1350- are kept in tunnel oven during heating
1400 DEG C, firing period 28-30h；The type of cooling after high temperature sintering is to be cooled to 1050-1100 DEG C with kiln, then to kiln
Interior air-supply accelerates cooling.
The preparation method of the Ceramic Balls of above-mentioned built-in pure titanium or alpha titanium alloy skeleton, in which: in the ball base transfer process
The transfer device used is negative-pressure adsorption-type.
The preparation method of the Ceramic Balls of above-mentioned built-in pure titanium or alpha titanium alloy skeleton, in which: in the powder that station one is filled
For the 48-52% of the total dosage of Ceramic Balls, the capacity of the powder lot in bags of station three should be the volume and the total dosage of Ceramic Balls in press-powder hole
The sum of 55-58%.
The present invention is without the prior art.The ceramics that the present invention uses are matched using the patent that the present inventor had applied before this
Side, with high rigidity, high temperature resistant, corrosion-resistant, operating power consumption is low, material consumption is low, binding force is good, jolt capacity is strong, shock resistance antiknock
It shakes, the advantage that the cement fineness of production and later strength are high；Relative at present it is integral sintered, without built-in pure titanium or alpha titanium alloy bone
For the Ceramic Balls of frame, the Ceramic Balls of built-in pure titanium of the invention or alpha titanium alloy skeleton are using the pure titanium of implantation or alpha titanium alloy skeleton
Method, pure titanium or alpha titanium alloy skeleton formed using integral die-cast, skeleton good integrity and is easy to implement industrialized production；Tree
Dendritic or herring-bone form structure can guarantee that it combines closely with ceramics, to keep Ceramic Balls globality more preferable；Size is moderate, both
It is convenient to guarantee Profile procoess process, and can guarantee that the globality of Ceramic Balls is more preferable.The Ceramic Balls that the present invention makes both were kept
The advantages of traditional ceramics ball, but the intensity, plasticity, toughness that can fully play pure titanium or alpha titanium alloy are high, corrosion resistance is good, resistance to
The high advantage of hot, high formability, specific strength, in conjunction with ceramics itself high abrasion, high rigidity the features such as, and impacted
When impact force can be shared by skeleton, is non-breakable, avoid starting, emergency stop, throw pendant etc. impact caused by Ceramic Balls break
It is broken；And itself is (9.41~10.03) × 10 because of the thermal expansion coefficient of titanium-6/ DEG C, with the expansion of ceramics during the sintering process
Rate is very close, avoid in heating temperature-fall period because expansion rate it is different caused by ceramic fragmentation.
Meanwhile the preparation method of the Ceramic Balls of the built-in pure titanium or alpha titanium alloy skeleton in the present invention, immediate existing skill
Art is preparation method of the present inventor in the more parts of Ceramic Balls applied before this, and difference is, the present invention is because in Ceramic Balls
Built-in pure titanium or alpha titanium alloy skeleton, use conventional methods cannot achieve implantation skeleton at all, therefore Profile procoess process uses
Sub- process, the advantages such as first watering powder, skeleton dropping place, sphere pressing full circle, the transfer of ball base are that the pressing of ball base is greater than because of raw material
Demand, compactness is high, and skeleton is tightly combined with ball base；It is simple and fast without increasing extras using rotary cutting full circle；
Negative-pressure adsorption-type transfer equipment avoids the damage in transfer process to Ceramic Balls.Many and diverse procedure is extremely letter, makes entire die mould
Manufacturing procedure process is succinctly orderly, is able to achieve the automatic production of industrialization；In addition, Ceramic Balls base during the sintering process because ceramics not yet
Molding, its internal pure titanium or alpha titanium alloy skeleton have very strong chemical activity at high temperature, be very easy to absorb hydrogen, oxygen,
The impurity such as nitrogen, carbon so be passed through inert gas such as argon gas in high temperature sintering process, while abandoning and traditional needing higher temperature
Shuttle kiln, control only with tunnel oven and by maximum temperature at 1400 DEG C, avoid oxidation under higher temperature etc. serious；Sintering
After the type of cooling using be first cooled to 1050-1100 DEG C with kiln, then into kiln, air-supply accelerates cooling, be because straight under high temperature
Picking air cooling may make ceramic temperature shock crack, so being first cooled to 1050-1100 DEG C with kiln, then blow and accelerate into kiln
Cooling be in order to be quickly cooled down pure titanium or alpha titanium alloy skeleton from β phase region, to obtain more acicular α tissue, make pure titanium or
Alpha titanium alloy skeleton creep rupture strength with higher, creep strength and fracture toughness.
Detailed description of the invention
Fig. 1 is the sectional view of the Ceramic Balls of built-in pure titanium or alpha titanium alloy skeleton of the invention；
Fig. 2 is the flow diagram of preparation method medium-pressure type manufacturing procedure of the invention；
Fig. 3 is the structural schematic diagram of the episphere mould of preparation method medium-pressure type manufacturing procedure of the invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the schematic diagram of the stepping conveying belt of preparation method medium-pressure type manufacturing procedure of the invention.
In figure: lower semisphere mould 1, powder 2, conveying pipeline 3, pure titanium or alpha titanium alloy skeleton 4, episphere mould 5, powder lot in bags 6,
Molding press 7, transfer device 8, Ceramic Balls base 9, stepping conveying belt 10.Wherein episphere mould 5 contains: upper entrance 51, it is upper in
Circular groove 52, lower interior circular groove 53, episphere die cavity 54, press-powder hole 55, closed section 56.
Specific embodiment
The Ceramic Balls of built-in pure titanium or alpha titanium alloy skeleton of the invention, as shown in Figure 1, integrally being pressed by pure titanium or alpha titanium alloy
Pure titanium or alpha titanium alloy skeleton of cast solid structure, dendroid or herring-bone form structure and the spheres of ceramic composition outside it is wrapped up,
It is manufactured by way of whole pressing, high temperature sintering；The pure titanium or alpha titanium alloy skeleton total volume are the 3- of Ceramic Balls volume
5%, longest direction size is less than the 70% of spheres of ceramic outer diameter；Spheres of ceramic is made of alumina-based ceramic material, formula
For aluminium oxide 92-95%, di-iron trioxide 0.5-2%, kaolin 0.8-3%, silicon carbide 0.2-2%, titanium dioxide 1.5-2%, carbonization
Titanium 0.8-1%, molybdenum disulfide 0.3-2%, the embodiment of this formula and detailed proportion have in the patent that the present inventor applies before this
It is discussed in detail, repeats no more.
The preparation method of the Ceramic Balls of built-in pure titanium or alpha titanium alloy skeleton of the invention, including ingredient, ball milling, make by spraying
Grain, the processes such as feed bin is aging, the polishing of Profile procoess, high temperature sintering, clear powder, finished product are dry, remove Profile procoess, high temperature sintering process
Different outer in the patent applied before this from the present inventor, other process has a detailed description.It is used in preparation method of the invention
Profile procoess equipment be discussed in detail in another invention that the present inventor applies on the same day, because being not belonging to weight of the invention
Point, details are not described herein again.It is of the invention complete the preparation method is as follows:
A. ingredient: taking all the components by weight percentage, is mixed and stirred for uniformly, mixed material being made；It configures simultaneously
PVA solution matches as PVA: water=(7-10): 100；
B. ball milling:
1) preliminary grinding: preliminary grinding milling apparatus is added in the ingredient taken that step (a) is fallen into a trap, and ballstone and water is added, and ratio is material:
Ball: water=1:2.5:(0.7-0.75), until slurry fineness D90≤8 micron stop grinding, crosses 40 meshes and go out to grind；
2) fine grinding: fine grinding milling apparatus is added in the slurry that step (b1) is obtained, and ballstone and water is added, and ratio is material:
Ball: water=1:(2-3): (0.7-0.75), until stopping grinding behind slurry fineness D50≤1.5 micron, D90≤3.2 micron；
3) mix grinding: being added the PVA solution 9-12% configured in step (a) by weight in the slurry that step (b2) is obtained,
Mix grinding 0.5-1h crosses 150 meshes and goes out to grind, and carries out except iron；
C. mist projection granulating: the PVA solution configured in appropriate step (a) will be added in slurry that step (b3) obtains, and beats
Enter high-order slurry tank, control the hot blast temperature, leaving air temp and pressure difference of spray drying tower, selects suitable spray piece diameter by spraying, into
Row mist projection granulating, pelletizing cross 20 meshes；
D. feed bin is aging: the pelletizing progress that step (c) is obtained is aging, and the aging time is no less than 48h；
E. as shown in Fig. 2,3,4,5, Profile procoess includes:
1) first watering powder: lower semisphere mould 1 is transported to station one by stepping conveying belt 10, and the powder 2 that step d is obtained is led to
It crosses conveying pipeline 3 and is poured into lower semisphere mould 1, loading is the 48-52% of the total dosage of Ceramic Balls；The moisture control of powder 2 0.5% with
Under；
2) skeleton dropping place: being transported to station two for lower semisphere mould 1, then passes through the pure titanium of placement or the dress of alpha titanium alloy skeleton 4
Set the powder 2 that pure titanium or alpha titanium alloy skeleton 4 by the molding dendroid of integral die-cast or herring-bone form are placed into lower semisphere mould 1
Centre of surface position；
3) sphere presses full circle: lower semisphere mould 1 is transported to station three；It is the volume and Ceramic Balls in press-powder hole 55 by capacity
The powder lot in bags 6 of the sum of the 55-58% of total dosage is put into the upper entrance 51 of episphere mould 5, then molding press 7 with episphere
The parallel mode of upper entrance 51 in mould 5 enters, and rotates clockwise 90 ° in upper after circular groove 52 reaching, molding press 7 and upper half
Ball mould 5 is fixed in the vertical direction；Subsequent molding press 7 drives 5 downlink of episphere mould, until episphere mould 5 connects with lower semisphere mould 1
Touching, molding press 7 are rotated by 90 ° counterclockwise, and molding press 7 and episphere mould 5 release fixation in the vertical direction；7 downlink of molding press, will
The sack of powder lot in bags 6 crushes, in powder lot in bags 6 episphere die cavity 54 is got by press-powder hole 55;Molding press 7 after
Continuous to come downwards to the lower interior circular groove 53 of arrival, powder lot in bags 6 and pure titanium or alpha titanium alloy skeleton 4, powder 2 are squeezed into one, have been formed
Whole Ceramic Balls base 9；Molding press 7 continues to rotate after rotating clockwise 90 °, is limited by the closed section 56 of lower interior circular groove 53, pressure
Mould machine 7 drives episphere die cavity 54 to rotate, and rotation carries out at least 3 circles, and episphere die cavity 54 is by the extra base on 9 surface of Ceramic Balls base
Material machines away；Subsequent molding press 7 lifts, and episphere die cavity 54 is driven to leave Ceramic Balls base 9.
4) ball base shifts: lower semisphere mould 1 being transported to station four, by the transfer device 8 of negative-pressure adsorption-type by Ceramic Balls
Base 9 is transferred to high temperature sagger, sprinkles parting sand.
F. high temperature sintering: the high temperature sagger equipped with Ceramic Balls base (9) that step (e) is obtained is sent into the good tunnel of air-tightness
In kiln；Logical inert gas, 1350-1400 DEG C of high temperature sintering temperature, firing period 26- are kept in tunnel oven during heating
36h；The type of cooling after high temperature sintering is to be cooled to 1050-1100 DEG C with kiln, and then into kiln, air-supply accelerates cooling；
G. clear powder polishing: the parting sand and burr of adherency of the product in sintering process are removed；
H. finished product is dry: being dried to product, obtains finished product.
The foregoing description of the disclosed embodiments, only for can be realized professional and technical personnel in the field or use this
Invention.Various modifications to these embodiments will be readily apparent to those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention will not be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent widest scope of point.
Claims (6)
1. the Ceramic Balls of pure titanium or alpha titanium alloy skeleton built in one kind, it is characterised in that: the one made of pure titanium or alpha titanium alloy
The skeleton of structure and the spheres of ceramic wrapped up outside it form, and are manufactured by way of whole pressing, high temperature sintering；Pure titanium or α titanium
The total volume of alloy skeleton is the 3-5% of Ceramic Balls volume, and longest direction size is less than the 70% of spheres of ceramic outer diameter；Spheres of ceramic
It is made of alumina-based ceramic material.
2. the Ceramic Balls of built-in pure titanium according to claim 1 or alpha titanium alloy skeleton, it is characterised in that: the pure titanium or α
Titanium alloy framework is the molding dendroid of integral die-cast or herring-bone form structure.
3. the Ceramic Balls of built-in pure titanium according to claim 2 or alpha titanium alloy skeleton, it is characterised in that: the Ceramic Balls
The formula of body are as follows: aluminium oxide 92-95%, di-iron trioxide 0.5-2%, kaolin 0.8-3%, silicon carbide 0.2-2%, titanium dioxide
1.5-2%, titanium carbide 0.8-1%, molybdenum disulfide 0.3-2%.
4. a kind of preparation method of the Ceramic Balls of built-in pure titanium according to claim 3 or alpha titanium alloy skeleton, feature exist
In: including ingredient, ball milling, mist projection granulating, feed bin be aging, Profile procoess, high temperature sintering, the polishing of clear powder, finished product drying process,
It is characterized in that:
A. the Profile procoess process includes following sub- process:
1) first watering powder: lower semisphere mould (1) is transported to station one by stepping conveying belt (10), by the powder of ceramic prilling
(2) it is poured into lower semisphere mould (1) by conveying pipeline (3), the moisture control of powder (2) is below 0.5%；
2) skeleton dropping place: being transported to station two for lower semisphere mould (1), then passes through the pure titanium of placement or the dress of alpha titanium alloy skeleton (4)
Set the powder that pure titanium or alpha titanium alloy skeleton (4) by the molding dendroid of integral die-cast or herring-bone form are placed into lower semisphere mould (1)
Expect the centre of surface position of (2)；
3) sphere presses full circle: lower semisphere mould (1) is transported to station three；Powder lot in bags (6) is put into the upper of episphere mould (5)
Portion's entrance (51), then molding press (7) is entered in the mode parallel with upper entrance (51) in episphere mould (5), is reached
90 ° are rotated clockwise after circular groove (52) in upper, molding press (7) is fixed in the vertical direction with episphere mould (5)；Subsequent molding press
(7) episphere mould (5) downlink is driven, until episphere mould (5) is contacted with lower semisphere mould (1), molding press (7) is rotated by 90 ° counterclockwise,
Molding press (7) and episphere mould (5) release in the vertical direction to be fixed；Molding press (7) downlink, by the sack of powder lot in bags (6)
Crush, in powder lot in bags (6) got into episphere die cavity (54) by press-powder hole (55);Molding press (7) continue traveling downwardly to
It reaches circular groove (53), powder lot in bags (6) and pure titanium or alpha titanium alloy skeleton (4), powder (2) in lower and is squeezed into one, formed
Whole Ceramic Balls base (9)；Molding press (7) continues to rotate after rotating clockwise 90 °, by the closed section (56) of lower interior circular groove (53)
Limitation, molding press (7) drive episphere die cavity (54) rotation, and rotation carries out at least 3 circles, and episphere die cavity (54) is by Ceramic Balls base
(9) the extra blank on surface machines away；Subsequent molding press (7) lifts, and episphere die cavity (54) is driven to leave Ceramic Balls base (9)；
4) ball base shifts: lower semisphere mould (1) being transported to station four, Ceramic Balls base (9) is transferred to height by transfer device (8)
Warm saggar, sprinkles parting sand；
B. the high temperature sintering process specifically: send the high temperature sagger of the Ceramic Balls base (9) obtained equipped with Profile procoess process
Enter in the good tunnel oven of air-tightness；Logical inert gas, high temperature sintering temperature 1350-1400 are kept in tunnel oven during heating
DEG C, firing period 28-30h；The type of cooling after high temperature sintering is to be cooled to 1050-1100 DEG C with kiln, is then sent into kiln
Wind accelerates cooling.
5. the preparation method of the Ceramic Balls of built-in pure titanium according to claim 4 or alpha titanium alloy skeleton, it is characterised in that:
The transfer device (8) used in the ball base transfer process is negative-pressure adsorption-type.
6. the preparation method of the Ceramic Balls of built-in pure titanium according to claim 5 or alpha titanium alloy skeleton, it is characterised in that:
In the 48-52% that the powder (2) that station one is filled is the total dosage of Ceramic Balls, the capacity of the powder lot in bags (6) of station three should be press-powder
The volume in hole (55) and the total dosage of Ceramic Balls 55-58%'s and.
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| CN109574638A (en) * | 2018-12-29 | 2019-04-05 | 山东天汇研磨耐磨技术开发有限公司 | A kind of high-bond ceramics section and its manufacturing method applying metal-rubber |
| CN110774626A (en) * | 2019-10-31 | 2020-02-11 | 南京泓德时代纺织科技有限公司 | Powder filling sheet processing method |
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| CN103113112A (en) * | 2013-02-04 | 2013-05-22 | 西安交通大学 | Preparation method of metal toughened ceramic-based composite material turbine blade |
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| CN104845584A (en) * | 2015-01-06 | 2015-08-19 | 朱晖 | Nonmetal grinding medium for cement grinding, and application thereof |
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| JPH1080909A (en) * | 1996-09-06 | 1998-03-31 | Toyota Central Res & Dev Lab Inc | Manufacture of ceramic molding and mold for ceramic molding |
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| CN103113112A (en) * | 2013-02-04 | 2013-05-22 | 西安交通大学 | Preparation method of metal toughened ceramic-based composite material turbine blade |
| CN103232229A (en) * | 2013-05-13 | 2013-08-07 | 景德镇百特威尔新材料有限公司 | Ultra-wear-resistant alumina ceramic ball and preparation method thereof |
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